I've posted a few threads on this topic as every time I clear the problem it moves somewhere else.
I have a customer with a Street Fighter 2, currently fuses F8 (BACKBOX GI) and F9 (PLAYFIELD GI) Are shorting together.
Every bulb holder is shorted out which made me search for shorts further than just the playfield. I separated the fuse holders just to be certain there was nothing bridging them, with a continuity tester the right hand wire on fuse F8 coming from the transformer is shorting somewhere to the left hand wires of F9 going to the playfield. I disconnected all connectors and tried to trace the issue, if I disconnected A12J9 (transformer) the short dissappears. Also if I disconnected A9J3 (going to A Q T Relays) the short dissappears. I checked both connectors for any shorted wires/pins and found nothing, a also checked all relays for anything shorting the switches out and found nothing.
Any help would be greatly appreciated as this has become a very frustrating issue that the owner of the machine has been tracing for over 2 years
Thanks
James